Question

I’m confused as to whether or not using UIView addTarget:action: causes that view to be retained. Specifically, I have a UITableView with custom cell views which are registered with an event on a view controller. These cell views are autoreleased.

UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

UIView *cellView = [[UIView alloc] initWithFrame:viewRect];


[cellView addTarget:self action:@selector(dosSomething:) forControlEvents:UIControlEventTouchUpInside]; //is this not a good idea?

[cellView autorelease]; //will this get released?
}

Answer 1

addTarget:action:forControlEvent: does not affect a view’s retain count in any way. The way you call autorelease now is fine; your view will be placed in the autorelease pool and eventually released.

Note that for your view to be useful you have to add it as a subview to some other view (e.g. your cell). That view will retain it there because it will take ownership of your view, but by calling autorelease here you are handling things correctly.